With the continuous advancement of communication technology, the escalating demand for electromagnetic shielding interference (EMI) materials with multifunctional and wideband EMI performance has become urgent. Controlling the electrical and magnetic components and designing the EMI material structure have attracted extensive interest, but remain a huge challenge. Herein, we reported the alternating electromagnetic structure composite films composed of hollow metal-organic frameworks/layered MXene/nanocellulose (HMN) by alternating vacuum-assisted filtration process. The HMN composite films exhibit excellent EMI shielding effectiveness performance in the GHz frequency (66.8 dB at Ka-band) and THz frequency (114.6 dB at 0.1-4.0 THz). Besides, the HMN composite films also exhibit a high reflection loss of 39.7 dB at 0.7 THz with an effective absorption bandwidth up to 2.1 THz. Moreover, HMN composite films show remarkable photothermal conversion performance, which can reach 104.6 °C under 2.0 Sun and 235.4 °C under 0.8 W cm 

Hollow Metal-Organic Framework/MXene/Nanocellulose Composite Films for Giga/Terahertz Electromagnetic Shielding and Photothermal Conversion.

Coatings are widely used in all aspects of life due to their easy and efficient functional properties. In today's pursuit of green living, people are increasingly looking for green, biosafe materials, so there is a trend to develop simple and economical methods of coating materials using natural polymers. Lignin, as a natural renewable aromatic polymer, has a unique chemical structure that is ideal for the preparation of UV-resistant and superhydrophobic coatings. In this study, a triphenol epoxy resin (PTEP) was synthesized and prepared using vanillin and guaiacol and then using octadecyltrichlorosilane to chemically modify the lignin to prepare modified lignin (OSL) with superhydrophobic properties. Finally, lignin-based superhydrophobic functional coatings (PTEP-OSL and PTEP-OSL/ZnO) were prepared using superhydrophobic modified lignin, PTEP, and nano-ZnO particles. Both the PTEP-OSL coating and PTEP-OSL/ZnO coating have good superhydrophobic properties, and the maximum contact angles can reach 160° and 159°. The superhydrophobic properties of lignin-based coatings are mainly attributed to the high surface roughness they construct and the low surface energy provided by the modified lignin. And compared with the PTEP-OSL coating, the PTEP-OSL/ZnO coating doped with nano-ZnO particles has a smoother surface and good anticorrosion performance. Electrochemical results show that the PTEP-OSL/ZnO coating has a higher impedance (Z = 5.56 × 107 Ω cm2) and higher phase angle value (θ = 80.24°). In addition, both PTEP-OSL and PTEP-OSL/ZnO coatings exhibit good UV shielding properties, which will further expand their practical applications. The lignin-based polymer coating has the advantages of being low-cost, green, and renewable, providing a simple route to value-added utilization of lignin. 

Preparation and Properties of Modified Lignin/Triphenol Epoxy Composite Coatings for Superhydrophobicity and Corrosion Protection

Abstract SBA‐15 is successfully incorporated into a composite superabsorbent hydrogel polymer (SAHP) by in situ graft polymerization of acrylic acid (AA) on a carboxymethyl cellulose (CMC) backbone using SBA‐15 as a filler. The structure and properties of the SAHPs are studied in detail by means of a variety of characterization methods, including Fourier transform infrared spectroscopy, X‐ray diffraction, and field emission scanning electron microscopy. And the effects of the originating mate‐rials (such as SBA‐15, initiator, cross‐linker, ratio of CMC to AA, and neutralization of AA) and pH on the water absorption properties are discussed. The obtained results show that the introduction of SBA‐15 have significant effect on the intrinsic structure of the superabsorbent. Importantly, the composite SAHP exhibit higher thermal stability and significant swelling as well as water retention capacity. The prepared SAHP show good sensitivity to various surfactant solutions, which not only have water retention applications in agriculture but also show potential applications in the field of biomaterials. 

Modified corn stalk carboxymethyl cellulose, acrylic acid and SBA‐15 based composite hydrogel used for agricultural water retention

Conductive pressure sensitive adhesives (PSA) used for wearable and smart electronic sensors have attracted a significant amount of attention recently. However, achieving multifunctional conductive PSA with the feature of temperature tolerance and sustainability via a convenient and environment-friendly approach still remains challenge. Herein, a novel cellulose-rosin based poly(esterimide) (PEI) was first prepared by esterification and imidization. Then, the cellulose-rosin based PEI was integrated with polymerizable deep eutectic solvents (PDES, 2-hydroxyethyl acrylate and triethanolamine as hydrogen bond donor, choline chloride as hydrogen bond receptor) and performed UV-induced polymerization for formation of the conductive PSA with dual network (DN). The DN structure and the existence of extensive hydrogen bonds endowed these cellulose-rosin based conductive PSA with excellent adhesion property (shear resistance more than 70 h, tack of 14.6 N and 180° peel strength of 148.1 N/m, are higher than that of some typical commercial PSA), exceptional UV-blocking, solvent-resistance (usable in low polar solvent) and temperature tolerance (perform well between -25 °C to 140 °C). Furthermore, these conductive PSA could be used as wearable sensor to monitor subtle movements and achieve real-time monitoring of interface adhesion states even under extreme environmental conditions. This work provides a green strategy for the next-generation of multifunctional PSA.

Sustainable, temperature-tolerant, dual network conductive pressure sensitive adhesive from cellulose and rosin for wearable sensing

Preparation of ultrafine hydrophobic lignin-contained cellulose nanofiber via mechanochemical method and its films

Lignocellulosic nanofibers (LCNFs) have been recognized as promising candidates for multifunctional biological coatings. In this work, LCNFs were produced in a one-pot approach from high yield pulp (HYP) with different meshes using polymerizable deep eutectic solvent (DES) comprising choline chloride and acrylic acid. The DES-treatment did not alter the chemical properties of LCNFs, and employment of this LCNF/DES coating endowed the paper with improved hydrophobicity, tensile-strain, and electrical conductivity. Of particular interest is that the LCNF60/DES-coated paper presented outstanding fire-resistant properties. This work contributes knowledge to develop an eco-friendly and inexpensive approach by using the most abundant bioresource, lignocellulosic biomass, to produce multifunctional paper and advance the development of the application of LCNFs. 

Development of Multifunctional Paper Using Lignocellulosic Nanofiber-Reinforced Coatings

Lignocellulosic nanofibril (LCNF) is indispensable in numerous potential applications because of its unsurpassed quintessential characteristics. While it still remains a challenge to assemble LCNF in a facile and environmental economy-first manner. In this work, a simple and green one-step synthetic approach was reported to prepare a series of LCNF-containing versatile hydrogels using deep eutectic solvent (DES). In particular, the LCNF5% hydrogel (namely LCNF5%-gel) in this work perfectly integrated superior stretchability (∼643 %), and displayed a dramatically improved anti-swelling ability (25 %) compared to the control sample (neat DES hydrogel, 2252 %). Simultaneously, the LCNF5% hydrogel presented underwater adhesiveness and outstanding long-term low-temperature resistance (stable at −25 °C for a month). This novel multifunctional hydrogel, prepared by a facile and eco-friendly strategy, is potentially useful in wet adhesion or underwater applications. 

Fabrication of versatile lignocellulose nanofibril/polymerizable deep eutectic solvent hydrogels with anti-swelling, adhesive and low-temperature resistant properties via a one-pot strategy.

The development of multifunctional films with high strength, biodegradability, and excellent thermal conductivity has drawn increasing interest. In this study, inspired by the unique hybrid structure of oysters, a nanophase-reinforced organic–inorganic hybrid structure was built using polydopamine modified boron nitride (BN@PDA), soy protein isolate (SPI), dialdehyde cellulose (DAC), and polyethylene glycol (PEG) to develop a strong soy protein film with multifunctionalities. The resultant films displayed excellent thermal diffusion ability and exhibited high tensile strength (24.03 MPa) and thermal conductivity (TC, 2.96 W·m−1·K−1) under low BN load (<0.5%). Meanwhile, the formation of non-covalent cross-linking and organic–inorganic hybrid structure endowed the films with superior flexibility. Importantly, owing to the selection of bio-based materials for preparation, the SPI-based films exhibited good biodegradability. It is believed that this study provides a creative perspective for the development of value-added multifunctional film materials and has good application prospects in advanced bio-based thermal conductive materials. 

Preparation of strong soy protein composite materials with thermal conductivity and biodegradability by constructing nanophase enhanced organic-inorganic hybrid structure

Preparation of methylated TEMPO-oxidized cellulose nanofibril hydrogel with high-temperature sensitivity

Popular Tasks used by Researchers

How can I help with your research?

Get more enhanced response by uploading the PDFs you want me to reference.

No relevant PDFs in your library

SciSpace is the AI research assistant for academics. Run systematic literature reviews on 280M+ papers, and write papers with cited sources. Trusted by 1M+ students, PhDs & researchers.

SciSpace | AI for Research

We encountered an error while loading the panel. Please try refreshing the page.

Something went wrong

Analyze PDFs

Code & Manuscripts

Funding & Grants

Literature & Patents

Medical & Clinical Data

Systematic Review

Visualize & Present

Web & Data

Build a Google Scholar-like website for your research.

Build a website

Create charts and images for your research

Create a Chart

Write a paper for submission to a journal

Draft a manuscript

Patent Search

Design eye-catching scientific posters in minutes.

Scientific Poster Generation

Systematic Literature Review

Anyone with the link can view this chat. You can switch it back to private anytime.

One task is running at the moment. Your messages will be shown right after.

Drag and drop or click here to browse

Loved by <highlight>1 million+</highlight> researchers

Extract a list of specific topics and their sources from unstructured text

Topics

Compare and analyze relevant papers that matches with your search

Papers

Get insights from PDFs and bookmarked papers from your library

My library

Recent searches

Try searching for:

Catch AI-generated content in scholarly and non-scholarly content

{ai} Detector

Ai Writer

Get PDF Summaries, highlighted text explanations 

Chat with PDF

Effortlessly create in-text citations and bibliographies in APA and 2,500 other formats

Citation generator

Get explanations, summaries, and answers on academic papers

Ease up your research workflow with {scispace}'s cohort of exciting AI tools

Elevate your academic writing skills and convey your ideas the way you want

Paraphraser

Explore our range of reading and writing tools

Your file is being prepared and should be ready in a few minutes. If it's a large file, it might take a bit longer. You can close this window, and we'll email you the file when it's done.

You have reached a maximum limit of <strong>{limit}</strong> columns in the table. Remove at least <strong>1</strong> column to add or create another one.

Limei Fu

Author Tools

Chat about Author

Papers

Development of Multifunctional Paper Using Lignocellulosic Nanofiber-Reinforced Coatings

Fabrication of versatile lignocellulose nanofibril/polymerizable deep eutectic solvent hydrogels with anti-swelling, adhesive and low-temperature resistant properties via a one-pot strategy.

Preparation of strong soy protein composite materials with thermal conductivity and biodegradability by constructing nanophase enhanced organic-inorganic hybrid structure

Preparation of methylated TEMPO-oxidized cellulose nanofibril hydrogel with high-temperature sensitivity